KRK ERGO

I just returned mine. I tried it on a whim -- easy to find from the big name online music stores w/return policy. I was excited at the notion of room correction utilizing the famous Lyngdorf Room perfect technology for $500, and hoping for distinct improvement in my rather bright and slap-happy room. But for whatever reason it boosted the mid-bass and bass WAY up. There was no way the room was 'corrected'. In fact, it was intolerable. It apparently thought my room acoustics weren't muddy enough. I tried multiple times with different mic positions, etc -- same result every time. And then the software stopped working properly. I gave up.

I read another post in another forum where someone had a similar problem. I'm guessing it's an anomoly since there have been many successful reports. Ah well, back to good ol fashioned wall panels

Tholt what does the frequency response of your room look like;maybe just room treatments would solve any issues.

I haven't measured my room -- that would be the hard way. I was hoping the KRK would just do its thing. The room suffers primarily from a lot of reflective surfaces and open area creating slap echo. Addtionally I have vaulted ceilings that go to 12'. I've treated upper corners, rear wall (since my head is close to it), behind speakers. First reflection points, ceiling are likely next. I'm addressing the issue more seriously now that I'll be doing the work.

I am a very satisfied owner of the Ergo.

It only addresses/corrects up to 500Hz, so if brightness is your issue than you need to look elsewhere most likely although I suppose corrections in the lower frequencies could give the listener the impression of less brightness. The Ergo also asks for numerous specific microphone placements to take measurements. There should not be much experementation with mic positioning. (Although if your results were poor I can't blame you for trying)

In my room it worked very well. The bass became much more solid and imaging greatly improved since it does level matching. The fact that is is also a very good sounding DAC is the icing on the cake.